zerocross~ detects the amount of noise present in a signal The zerocross~ object detects the amount of noise present in a signal by counting the number of times the signal crosses the zero volt line. It is assumed that noisier signals will have a more erratic and louder high frequency content which will cause the waveform to oscillate between positive and negative values more often.	from the library : Jimmies Format : External Environment : max / msp commercial Max 3.x / 4.x http://forumnet.ircam.fr//rubrique.php3?id_rubrique=65